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@article{guachaminacero_numerical_2020, title = {Numerical study of a concept for major repair and replacement of offshore wind turbine blades}, volume = {n/a}, issn = {1099-1824}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/we.2509}, doi = {10.1002/we.2509}, abstract = {Repair and replacement of offshore wind turbine blades are necessary for current and future offshore wind turbines. To date, repair activities are often conducted using huge jack-up crane vessels and by applying a reverse installation procedure. Because of the high costs associated with installation and removal of offshore wind turbine components and the low profit margin of the offshore wind industry, alternative methods for installation and removal are needed. This paper introduces a novel concept for replacement or installation of offshore wind turbine blades. The concept involves a medium-sized jack-up crane vessel and a tower climbing mechanism. This mechanism provides a stable platform for clamping, lowering, and lifting of a blade. A case study of a 5-MW offshore wind turbine is shown, where common engineering practices were applied and numerical simulations of the marine operations were carried out using finite element and multibody simulation tools. Operational limits for wave and wind actions were established to demonstrate the technical feasibility of the proposed concept.}, language = {en}, number = {n/a}, urldate = {2020-04-29}, journal = {Wind Energy}, author = {Guachaminā€Acero, Wilson and Jiang, Zhiyu and Li, Lin}, month = mar, year = {2020}, note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/we.2509}, keywords = {blade replacement, numerical simulation, offshore wind turbine, tower climbing mechanism, wind and waves}, }